Struct SequenceNumberSet 

pub struct SequenceNumberSet {
    pub bitmap_base: SequenceNumber,
    pub num_bits: u32,
    pub bitmap: Vec<u32>,
}

Bitset of sequence numbers from bitmap_base. Used in HEARTBEAT/ ACKNACK/GAP to signal sets of lost or known packets.

Wire layout (variable length): bitmapBase: 8 byte (SequenceNumber, big or little per header) numBits: 4 byte (u32) bitmap: ceil(numBits/32) * 4 byte (u32 words)

Fields

bitmap_base: SequenceNumber

First sequence number that the first bit is responsible for.

num_bits: u32

Number of valid bits.

bitmap: Vec<u32>

ceil(num_bits/32) u32 words.

Implementations

impl SequenceNumberSet

pub fn wire_size(num_bits: u32) -> usize

Computes the wire size in bytes based on num_bits.

pub fn from_missing(base: SequenceNumber, missing: &[SequenceNumber]) -> Self

Builds a SequenceNumberSet from a sorted list of missing SNs.

base is the smallest not-yet-acked SN (the AckNack base). missing must be sorted ascending and all SNs ≥ base. Bits are set in RTPS convention: bit 0 is the most-significant bit (MSB) of bitmap[0].

pub fn iter_set(&self) -> impl Iterator<Item = SequenceNumber> + '_

Iterates over all SNs whose bit is set.

pub fn encoded_size(&self) -> usize

Tatsaechliche Wire-Size dieses Sets.

pub fn write_to(&self, out: &mut Vec<u8>, little_endian: bool)

Encodes the set into out with the given endianness.

pub fn read_from( bytes: &[u8], offset: usize, little_endian: bool, ) -> Result<(Self, usize), WireError>

Decodes a set from bytes at offset. Returns (set, new position).

Errors

UnexpectedEof.

Trait Implementations

impl Clone for SequenceNumberSet

fn clone(&self) -> SequenceNumberSet

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SequenceNumberSet

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for SequenceNumberSet

impl PartialEq for SequenceNumberSet

fn eq(&self, other: &SequenceNumberSet) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for SequenceNumberSet